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3 years ago

The line L1 has equation 2x+y=8.The line L2 passes through the point A(7,4) and is perpendicular to L1.

Mathematics

1 answer:

baherus [9]3 years ago

4 0

If m1 and m2 are the slopes of each line, for them to be perpendicular you gotta solve
m1 * m2 = -1

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If ABC = ADC, which is NOT true by CPCTC ?

sdas [7]

We cannot use CPCTC to show that BE is congruent to DE.

CPCTC refers to the angles and sides of two congruent triangles being congruent to their corresponding pieces. The height of a triangle is not one of the given sides that counts in this.

4 0

3 years ago

What number is 40% of 180?

Olin [163]

Answer:

Step-by-step explanation:

You can find ten percent of 180 pretty easily, it is 18 (divide by 10) then multiply by 4 to get 40%.

4 0

2 years ago

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Add.<br> 92 +53<br> Enter the correct answer in the box.

Alja [10]

Answer:

145

Step-by-step explanation:

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2 years ago

Answer pls the question

blondinia [14]

Answer:

A AND D ARE CORRECT.

Step-by-step explanation:

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3 years ago

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there are 60 cows in a field .some are brown and the rest are white. Two thirds of the brown cows are less than one year old. Th

DIA [1.3K]

Answer: 0.7

Step-by-step explanation:

Let the number of white cows be x

Thus, the number of brown cows be (x+12)

Hence,

x+(x+12)=60

x+x+12=60

2x+12=60

2x+12-12=60-12

2x=48

Divide both parts of the equation by 2:

x=24 white cows

x+12=36 brown cows

The number of white cows are less than one year old:

$\displaystyle\\\frac{3}{4}(24)=\\\\\frac{3(24)}{4}=\\\\ 3*6=\\\\ 18\ white\ cows$

The number of brown cows are less than one year old:

$\displaystyle\\\frac{2}{3}(36)=\\\\ \frac{2(36)}{3}=\\\\ 2*12=\\\\24 \ brown \ cows$

The total number of cows are less than one year old:

$18+24=42\ cows$

Thus

Fraction of all the cows are less than one year old:

$\displaystyle\\\frac{42}{60}=\\\\\frac{6*7}{6*10}=\\\\\frac{7}{10} =\\\\ 0.7$

4 0

1 year ago